BML may refer to:
Businesses and organizations Bank of Maldives Big Mouth Loud, a member of the Global Professional Wrestling Alliance Bill Me Later, now PayPal Credit BML Munjal University, a university in Sidhrawali, Haryana, India
Libraries Biblioteca Medicea Laurenziana, a library in Florence, Italy Boston Medical Library, Boston, Massachusetts
Transportation Belfast and Moosehead Lake Railroad (1871–2007), Maine, U.S. Biham–Middleton–Levine traffic model Bramhall railway station, Stockport, Greater Manchester, England Brighton Main Line, a British railway line Brighton Main Line 2, a proposed extension of the Oxted line in southern England
Other uses Battle management language IATA code of Berlin Regional Airport in Berlin, New Hampshire, U.S. Big Maple Leaf, a gold coin produced by the Royal Canadian Mint in 2007 Bingley Music Live, an annual music festival held in Myrtle Park, Bingley, West Yorkshire, England BML-190 (Indomethacin morpholinylamide), a drug used in scientific research Postal code for Bormla, Malta Bray–Moss–Libby model, used in mathematics to describe premixed turbulent combustion Broadcast Markup Language (.bml), an XML-based standard